Usability Testing Basics
ClickZ: About a year and half ago "Web development was almost always done under ridiculous time constraints, and usability testing was seen as an advantageous but unnecessary step in developing a site. Even when sites were tested, there was no time to incorporate learning from the tests before launch. Since then, the industry has come a long way. Usability testing is now recognized as a necessary, if not integral, part of Web site development. As the industry matured, three simple truths emerged:" (2001-04-15)
The link address is: http://www.clickz.com/experts/brand/emkt_strat/article.php/840231